Removing vinyl chloride from a vent gas stream

Details Removing vinyl chloride from a vent gas stream Removing vinyl chloride from a vent gas stream

1976-03-29

1979-01-09

Bernstein, Hiram H.

Refrigeration

Processes

Circulating external gas

62 23, F25J 300

Patent

active

041336631

ABSTRACT:
This invention relates to an improvement in a process for removing gaseous vinyl chloride monomer from a vent gas stream containing water, carbon dioxide, vinyl chloride, and other atmospheric gases. The process comprises cooling the vent gas stream to a temperature of from about -200.degree. F to about -240.degree. F for condensing the vinyl chloride, separating the condensed vinyl chloride from the noncondensed stream, and then recovering the refrigeration from the resulting stripped vent gas.

REFERENCES:
patent: 2503939 (1950-04-01), De Baufre
patent: 3364686 (1968-01-01), Becker
patent: 3534562 (1970-10-01), Thijssen
patent: 3546192 (1970-12-01), Borsini
patent: 3808184 (1974-04-01), Sheth
Condensed Chemical Dictionary -- Hawley, 8th Ed., Van Nostrand Reinhold Co., N.Y., 1971, p. 927.
Cryogenic Engineering -- Scott D. Van Nostrand Co. Inc., N.Y., 1959, pp. 271, 272, 277.

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